Traversing, by an autonomous vehicle, a vehicle transportation network, may include identifying a policy for a scenario-specific operational control evaluation model of a distinct vehicle operational scenario, receiving a candidate vehicle control action from the policy, wherein, in response to a determination that an uncertainty value for the distinct vehicle operational scenario exceeds a defined uncertainty threshold, the candidate vehicle control action is an orientation-adjust vehicle control action, and traversing a portion of the vehicle transportation network in accordance with the candidate vehicle control action, wherein the portion of the vehicle transportation network includes the distinct vehicle operational scenario.